Originally Posted by CLE to IAH

I recommend you also have to capability to convert air into carbon dioxide. Some of the memory items and systems gouge for that,

- expand intercostals
- allow air to enter lungs
- be able to conduct a proper exchange/return through the pulmonary vein/artery
- allow sufficient time for said converted hemo-material to be transferred to all body systems
- be able to repeat this process


In other words- be breathing :-)